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Date May 2018 Marks available 4 Reference code 18M.1.SL.TZ0.3
Level SL Paper 1 Time zone no time zone
Command term Explain Question number 3 Adapted from N/A

Question

Google’s DeepMind uses a machine learning algorithm and neural network to analyse data. Google is now collaborating with the United Kingdom’s National Health Service (NHS) to develop systems that can improve the quality of health care.

Its first project is to create a system that can analyse digital scans of eyes and thus help doctors diagnose sight-destroying diseases in time for them to be treated. This is a complex problem for pattern recognition.

Google needs large quantities of retinal scans to test the algorithm. Moorfields Eye Hospital in London has the largest collection of retinal scans in the world and will share them with Google for free. The scans will be anonymized. Patients can opt out of sharing their data by emailing an NHS data protection officer. Google will use the knowledge gained from this project to help create future software that can eventually be marketed to health care providers.  

For this project, Google needs to consider the needs and concerns of multiple stakeholders, including patients, doctors, and the NHS. Google plans to hold four patient forums a year and set up a panel of independent reviewers to oversee what the company is doing. Ultimately, Google hopes to make a profit from this technology.

Identify two characteristics of an algorithm.

[2]
a.i.

Identify two characteristics of pattern recognition.

[2]
a.ii.

Google may use a range of representations of the algorithms during their development.

Identify two ways how these algorithms may be represented.

[2]
a.iii.

Google will collect large quantities of data that will be held in data centres.

Explain two concerns linked to the increasing number of data centres.

[4]
b.i.

Explain one advantage of using deep learning instead of traditional machine learning techniques.

[2]
b.ii.

It is claimed that the NHS’s partnership with Google is beneficial for both stakeholders. However, concerns have been raised about the ethical implications of this data-sharing agreement.

To what extent is it ethical for the NHS to share patient information about eye scans from Moorfields Eye Hospital with Google?

[8]
c.

Markscheme

Answers may include:


Award [1] mark for each of the characteristics identified above up to a maximum of [2] marks.

a.i.

Answers may include:


Award [1] mark for each of the characteristics identified above up to a maximum of [2] marks.

a.ii.

Answers may include:


Award [1] mark for each of the representations identified up to a maximum of [2] marks.

a.iii.

Answers may include:


Award [1] for identifying a concern linked to the use of data centres and an additional [1] for the explanation of that concern up to a maximum of [2] marks.

Mark as [2] + [2].

b.i.

Answers may include:


Award [1] for identifying an advantage of using deep learning and an additional [1] for the explanation of that advantage up to a maximum of [2] marks.

b.ii.

Answers may include:

Ethical problems:

Benefits for the NHS and its patients:

 

In part (c) of this question it is expected there will be a balance between the terminology related to digital systems and the terminology related to social and ethical impacts.

Keywords: health, medical care, medical diagnostics, data, privacy, anonymity, algorithm, change, power, systems, values

 

Refer to SL/HL paper 1, part c markbands when awarding marks. These can be found under the "Your tests" tab > supplemental materials > Digital society markbands and guidance document.

c.

Examiners report

[N/A]
a.i.
[N/A]
a.ii.
[N/A]
a.iii.
[N/A]
b.i.
[N/A]
b.ii.
[N/A]
c.

Syllabus sections

Topic 3: Content » 3.1 Data
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Topic 4: Contexts » 4.3 Environmental
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